Mixing HIWARE and ELF object files is not possible. HIWARE object file formats are not supported on the RS08. Mixing ELF object files with DWARF 1.1 and DWARF 2.0 debug information is possible. However, the final generated application does not contain any debug data.
Note: Be careful when mixing object files made with the HCS08 compiler, which can generate an alternate object file format called HIWARE. Both HIWARE and the ELF/DWARF object files use the same filename extensions. The HCS08 compiler must be configured to generate the ELF/DWARF object format. For information about how to do this, refer to the Microcontrollers V10.x HC08 Build Tools Reference Manual.